WuXi SHENGERKE PRECISION MACHINERY Co.,Ltd. is a professional manufacturer of rotary bits,coal mining bits,flat bits and shield driving cutters. Our products are widely used in coal mine, underground mine, tunnel, subway, metallurgy, water conservancy project, highway projects and other projects. Our products are well known by customers in more than 25 provinces,municipalities,autonomous regions and Korea, Japan, America, the United Arab Emirates, Brazil, Australia and other abroad markets.